Mexico City, Mexico, cob 4 reales, Philip IV, assayer P. S-M19; KM-38. 12.38 grams. Very bold assayer, nearly full shield and cross, darkly toned and with light surface corrosion near edge. Pedigreed to the Charles Eidel collection, with original tag #83,276 and certificate. Recovered from: Concepcion, sunk in 1641 off Hispaniola (Estimate: $90 - 135)